Sewing-machine for special work.



M. PETROCCHI. SEWING MACHINE FOR'SPECIAL woRK.

APPLICATION FILED DEC.12, 1912. 1,198,574.

Pateutcdvpt. 19, 1916.

4 SHEETS-SHEET 1.

M. PETR0ccH|. SEWING MACHINE FOR SPEC|A`L WORK.

APPLICATION FILED DEC- IZ, 1912.

Patented Sept. 19, 1916.

4 SHEETS-SHEET 2- s n N w T T A IN VEN TOR WITNESSES M. PETROCCHI.

SEWING MACHINE FOR SPECIAL WORK.

APPLICATION FILED DEC. I2. I9I2.

4 SHEETS-SHEET 3.

Patented Sept. 19, 1916.

M11/Lil TISSES /IIVEN'IR MW( @I M. PETROCCHI.

sEwlNG MACHINE FOR SPECIAL woRK.

APPLICATION FILED DEC. 12| 1912.

1 1 98,574 Patented Sept. 19, 1916.

4 SHEETS-SHEET 4.

ing.v machine.

TED STA-TES PATENTQFHCE MICHAEL PETROC'CHI', '0E eEANn'EAPDSjMICHIAHAssielqRTo' ROSE 'LABEL v 'sEWING-MACHNE EoE-SIPEemAE women l l A-. i uit.. i. e l' .I4 Application filed Dieeinber 12, 1312:'. ySerial No. {(36,25'7,

vthe followingis@ speeiezition'. d f

The inventen .mail he inetpellttl.. t0 .the l machine. in ,the .first place. er. f1.2 may. .be providedes .ain -attlihmeet telf erklingen@ Chimes. es it does ilomhevwifl@ Willi .the Special 2 .features .Qi l .the .stitching bullsirienely the Proper holding .find :lieeling .Ofillzlllfkf The Objects/2 ff -theinizentpn @emite-em: vide a Simple l andf'eflel-Ye means. fer feed. ingiwplesserf09ll0r fd@ y .7, .Objects rel .lieg stofeefnfniriis. ef Ce'fl'sbf tion and details of operation W'll eti appeanifrefewth@ .-eleserletlefl I accomplishthevbictstef; bythe deviees'end means deseribedinfthe following speoifiegition.,gY I .;f

The.` invention is .clearly ldefined and pointed out in the claims. .y 1. .,f;

A structure; constituting e preferred ,eme bodiment of my invention iselearly, Aillustratedin the accompanying drawing, form.- ing. a part of this speeificatiomin which;

Figure I is a perspective .View Olflzi Sewing machine embodying my invention. Fighll: is :in enlarged plan viev'vlofthel structure` of my improvementI when .provided asan .attaohment. Fig. III is e detail transverse sectional elevation taken on line 3-.3 oflFigl. H. Fig. IV is .a detziilgseetionul elevation taken on linel-ll of Fig Il. FigjV isen inverted plan View of the heed'for the Carrying arm for the presser foot or: Work holder.. Fig.` VI is an inverted plainl view of the Aeentrai guide block. .Fig VI-Igis;v a. transverse detail sectional View on line 7%7lof Fig. VI. Fig.. VIII is a detail` transverse seetional elevation of the. lower main giiide plate, taken on n line correspondingto line 3M?) of. Fig. Il. v FiglX is afdetail .plan view of a modicationothe C errerjhead ely .Work- Qlder elimini@ .th elesi" ffl-... l. l use 0f by Arthur. ROSQIlhalll ills .lmilfroved sewing rnachilleefr Whichihe. lapplied for Letters, Patent o the. Unitedx V,under dat@ OMRECA lll 1?:1201' Seri Nqnofgi and .1er1et.a.|pa.r let my ,iwenliep- My. leren? UGH (1S applleflbletevslleh;woll. he. er, 0r. wvl-@theme11 button hole filreS'Ser @et er any. kind Otwlmheder-i. f l The guide mechanism As. @tiren .by.-.rll 2ht wl1el...ll, which .seetll lipoil. @Hatchet pawl lbiivhieh-pewl lgis Controlled from the arm 13 Connected-'thereto.bythellink 14. Th..21.r.f.fl 13.. eonnftel, .150. any'. .qk ,shaft 0r. reelprowtlnelp'ertef tlleswlrig-fi1eillne A detentie. .S..p.1Qv...d .l ...te .epeielelwth theflcweline milfl2..;.

The presser footl is raised by the pi1-rod 16, whichL is connetedlbyisuiteblerneans,

loo

se@ dotted lilies, 'te lllelit-idl; all Clearly dol relate@ the (lfirlg-lmeewr-t0. the il tso iss

presser foot or work holder and the various parts just enumerated, I have not deemed it necessary to describe the same fully in detail. My invention relates to the proper actuation and guiding of the-carrier head driven y the ratchet wheel 11 already re-` :ferred to. The driving pinion 28 is on this' shaft.

The carrier head 19 is provided with a downwardl -projecting flange 19* forming an inverte rectan ular box on the under side of the'saiii'e, w ich serves as a guiding means. This box is provided with suitable slots 19b at front and rear, and at 19 at the sides to permit-the passage of the id ing pins 28 hereinafter described. 1 hisv head 19 lis rectan lar in form, and'lis engaged or stopped y and thenguided within the lateral guiding `flanges 21, 21 at each.

side, and 22, 22 at the front and rear of the base plate, the object of the structure being to carry the same around the four sides of a rectangle in' order to im `art that motion to the presser foot or wor holder 10 bythe carr ing arm therefor..

a central rectangular aperture and provide on its under side with lateral guide ribs'25 which engage in suitable'transverse'guide ways 24 ormed in the-plate 5.. This rectangular guide block A27 is of such width as to admit the proper backward and forward movement of the carrier head 19, which is effectively guided from front to rear by the close enga ement with this head.

Upwar y-lpreecting guide or sto pins 2a are prov de wh ch en age an pass through the slots 19 and 1 respectively, to permit proper movement of the carrier vide is disposed to' be actuated b the pinion 28 carried b the shaft 20. he racks 29 .at front an rear, and end racks 30esfidare driven from the pinion, and the motion of the said carrier head corresponds to the size of the label which is to be attached, or 'the size of the work to be done by the sewing machine.

I have thus described fully all the of my improved structure, and it wi l be noted that the carrier head is guided,` by

p holder bein head 19 an insure its being Rrcperlg guided into osition. The carrier. eed 1 s pro-,.- dpvvith an internal rectangular rack andA -With the drivi vmovement is a ways rectilinear it is perarts 'a closel engaged in whichever direction it may e moved. The driving means is centra ly located between the two parallel guides so that the parts move very freely without binding and consequently secure the l desired results with a minimum friction. o this. f

While I have described my main structure as ada ted to rectangular work, and while that will be the usual form, I desire to state that labels of different form and different forms of stitching can be a plied, `the work suitably con ormed and the parts guide I have indicated in Fig. IX

-adiamond form, in Fig. X a four-sided figure with one side beveled, and in Fig. XI a four-sided figure with one side curved.

-' From a consideration of these illustrations. it ,is clear that a great variety of forms can be worked out. Such forms, however, are all practically quadrangular. It is of great importance` that the carrier head be maintainedy in successive parallel positions, and the disposition of the guides in these various structures vsecures that result, the forms of the various guides being parallel, or designed to secure parallel action, although the uides themselves are of straight or curved ines, giving the predetermined form to the stitching and the movement.

While it is of consequence that the rack is centrally disposed of the guides with this structure, it would be possible to dispose the rack otherwise, as the tendency of the 1' guide members to bind is very sli ht and the ithin the rectangular box 19l formed by, the downsvardly projecting flange 19'* is the fr central rectangular guide blockV 27 ,havin structure would not work so free y, but that would be the only objection to the diii'erent arrangements.j,j. i

While I have shown the teeth of the rack formed completely into the corner of the rectangular portion, it is, of course, understood that the teeth in the extreme corner are of no consequence as they do not mesh4 with the pinion. lI will state that the in-y ternal guide and the external guide in vthis structure coperate completely and eectivcly together, each limiting the motion of the other and thereby securing the very best result and the complete avoidance of any binding so that the action of the sewing machine is in no way interfered with. l

I have shown the structure in its preferred form, and it secures great eiiiciencv in the operation of they structure. The rack is. effectively guided so that the meshing pinion is perfect, and as the vdriven by any suitable means.l I have shown a simple ratchet, such as is made use of in the structure appearing in the patent ap- 65 parallel guides on both sides and isver'y plication of Rosenthal already referred to. 1"

My improvement relates particularly to the guide means for controlling the guidlng head which carries thepresser foot or work holder. The guides shown are double and parallel and coperate effectively with the driving means. The structure is thus very stanch and effective. Single guides transverse to each other might be used if constructed k.with care and provided with effective stops.

I desire :to .claim my invention in the spe-l said guide base; a carrier head for traveling in the said guide base, rectangular in form, of such dimensions as to permit the required movement thereof in a rectangular patlr when guided within the guides of the main ide base, and having downwardly-pro- ]ecting guide flanges therearound containing slots to pass said guide pins and forming guide ways therefor; a central guide block disposed in the space within the downwardly rojecting guide flanges of said head and of ess dimensions in one direction only than said flanged space to permit movement of said head thereon, and provided with downwardly-projecting guides engaging suitable guide ways` formed in the guide base to permit movement of said block transversely to the movement of the head thereon; a centrally disposed vertical shaft with a pinion thereon; means connected to a moving part l of the sewing machine to impart motion thereto; an internal toothed rectangular rack centrally disposed of the said carrier head and adapted to mesh with and be driven by thepinion on the said vertical shaft; and an arm on said carrier head tocarry said work holder or presser foot, all coacting substantially as described for the purpose specified.

2. In a special work sewing machine having a suitable base, the combination of a work holder or presser foot; a main guide base disposed upon the base of said sewing machine, having upwardly-projecting guide flanges dis osed rectangularly about the` same; suita le guide pins disposed upon the said guide base; a carrier head for traveling in the said guide base, rectan lar in form, of such dimensions as to permlt the required movement thereof in a rectangular path when ided within the guides of the main ide ase, and having downwardly-project- 1ng guide flanges therearound containing slots to pass said guide pins and forming guide ways therefor; a centrally disposed vertical shaft with a pinion thereon; means connected to a moving part of the sewing machine to impart motion thereto; an internal toothed rectangular rack centrally disposed of the said carrier head andV adapted to mesh with and be driven by the pinion on the said vertical shaft; and an arm on said carrier head to carry said work holder or presser foot, all coacting substantially as described for the purpose specified.

3. In a special work sewing machine having a suitable base, the ycombination of a work holder or presser foot; a main guide base disposed upon the base of said sewing machine; suitable guide pins disposed upon the said guide base; a carrier head for traveling in the said guide base, and having downwardly-projecting guide flanges containing slots to pass said 'guide pins and forming guide ways therefor; a central guide block disposed in the space within the downwardly-projecting guide -langes of said head and of less dimensions in one direction only than said flanged space to permit movement of said head thereon, and provided with downwardly-projecting guides engaging suitable guide ways formed 1n the guide base to permity movement of said block transversely to the movement of the head thereon; a centrally disposed vertical shaft with a inion thereon; means connected to a moving part of the sewing machine to impart motion thereto; an internal toothed rectangular rack centrally disposed of the said carrier head and adapted to mesh with and be driven by the pinion on the said vertical shaft; and an arm on said carrier head to carry said work kholder or presser foot, all coacting substantially as described for the purpose specified.

4. In a special work sewing machine having a suitable base, the combination of a work holder or presser foot; a main guide base disposed upon the base of said sewing machine having upwardly-projecting guide flanges disposed rectangularly about the same; a carrier head for traveling in the said guide base, rectangular in form, of such dimension as to permit the required movement thereof in a rectangular path; guide means to direct said carrier head in a rec tangular path; a vertical shaft with driving pinion thereon; an internal toothed rectangular rack centrally disposed of the said carrier head and adapted to mesh with and be driven by the pinion on the said vertical shaft; and an arm on said carrier head to carry the work holder or presser foot, all coacting substantially as described and for the purpose specified.

5. In a special work sewing machine having a suitable base, the combination of a Work holder or presser foot; a main guide base disposed upon the base of said sewing machine; a carrier head for traveling in the said guide base, rectangular in form and having downwardly-projecting guide flanges therearound containing slots; a central guide block disposed within the downwardly-projecting flanges and of less dimensions in one direction only than said flanged space suitably guided on said base; a cen-x trally disposed vertical shaft with a pinion thereon; means connected to a moving part of the sewin machine to impart motion thereto; an internal toothed rectangular rack centrally disposed of the said carrier head and adapted to mesh with and be driven by the pinion on the saidvertical shaft; suitable guide pins disposed upon the said guide base for engaging the said carrier head and coperating with the slots in the flanges thereof; and an arm on said carrier head to carry the work holder or presser foot, all coacting substantially as described and for the purpose specified.`

6v In a special work sewing machine .having a suitable base, the "combination ofa work holder or presser foot; a main guide base disposed upon the base of said sewing machine; a carrier head for traveling in the said guide base, rectangular in form with downwardly projectin flanges; a central guide block dispose within the space embraced by said downwardly-projecting.

flanges and of less dimensions in one direction .only than said flanged space, suitably guided on said base; a centrally-disposed vertical shaft with a pinion thereon; means connected to a moving part of the sewing machine to impart motlon thereto; an internl toothed rectangular rack centrally disposed of the said carrier head and adapted to mesh with and be driven by the pinion on the said vertical shaft; and an arm on said carrier head to carry the work holder or presser foot, all coacting substantially Y as described and for the purpose specified. 7. In aspecial sewing machine having a suitable base, the combination of a work i holder or presser footgjafvmain guide base disposed on the baseof said sewing machine; a carrier head carried by the `said guide base; a plurality of guide means disposed transversely to each other to maintain said carrier head *in parallel position when in motion; a vrectangular rack cenchine; a carrier head; guide means disposed l transversely to each other to main`tain said head in parallel position when in motion; an internal toothed gear rack disposed on the said head of a form corresponding to the form desired to be stitched; a pinion o disposed to coact with the rack to drive the said carrier head; guide means comprising an inclosed path independent of said rack and pinion corresponding to the form of the rack, and means to positively direct the carrier head in said inclosed path; and a carryingarm on the said carrier head for the work holder or presser foot, coacting for the purpose specified.

9. In a special work sewing machine hav- -ing a suitable base, the combination of a work holder or presser foot; a main guide base disposed upon the base of the sewing machine; a carrier head for traveling in the said guide base; guide members carried by said carrier head coacting with said guide base, one of which parts forms an inclosed path for the other; conformed to carry the said head and positively direct the same through a predetermined course within said inclosed path; a rack and pinion means, the rack of which corresponds in contour to the path of said guide parts and independent of said guides; and an arm on said carrier head to carry the said work vholder or presser foot, coacting for the pur- MICHAEL PETRoooHI. [L a] Witnesses:

Rosin L. SABIN, WM. VANDENBEBG. 

